#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
  char buf[BUFSIZ];
  int n;

  while ((n = read(0, buf, BUFSIZ)) > 0) {
    write(1, buf, n);
  }

  return EXIT_SUCCESS;
}
